Assignee
HARNISCHFEGER CORP
184 granted patents·4,479 citations·filing 1974–1997
Top patents by PatentIndex Score
184 records- 0196US5410826AAssembly and method for tooth tip retentionHARNISCHFEGER CORP·Filed 1993·Granted May 2, 1995·109 cites·17 claims
- 0296US4752012ACrane control means employing load sensing devicesHARNISCHFEGER CORP·Filed 1986·Granted Jun 21, 1988·112 cites·18 claims
- 0396US4263996AReadily resettable torque-limiting coupling deviceHARNISCHFEGER CORP·Filed 1979·Granted Apr 28, 1981·55 cites·5 claims
- 0494US4258852AAuxiliary counterweight arrangement for mobile craneHARNISCHFEGER CORP·Filed 1979·Granted Mar 31, 1981·58 cites·11 claims
- 0593US5435084AApparatus and method for attaching a digging tooth tipHARNISCHFEGER CORP·Filed 1994·Granted Jul 25, 1995·93 cites·17 claims
- 0693US4726725ALoad grasping apparatus for narrow aisle stacker craneHARNISCHFEGER CORP·Filed 1986·Granted Feb 23, 1988·64 cites·17 claims
- 0793US4124226AElectrohydraulic outrigger control systemHARNISCHFEGER CORP·Filed 1977·Granted Nov 7, 1978·45 cites·11 claims
- 0892US4358239AWarehouse crane including inclinable tote pan pullerHARNISCHFEGER CORP·Filed 1980·Granted Nov 9, 1982·64 cites·7 claims
- 0992US4337601AHigh-strength light-weight boom section for telescopic crane boomHARNISCHFEGER CORP·Filed 1980·Granted Jul 6, 1982·54 cites·16 claims
- 1091US6025686AMethod and system for controlling movement of a digging dipperHARNISCHFEGER CORP·Filed 1997·Granted Feb 15, 2000·109 cites·18 claims
- 1191US4568233AStorage and retrieval apparatusHARNISCHFEGER CORP·Filed 1984·Granted Feb 4, 1986·47 cites·9 claims
- 1291US4529094AArticulation for tower crane boom that has a parking positionHARNISCHFEGER CORP·Filed 1983·Granted Jul 16, 1985·62 cites·4 claims
- 1391US4298128AMovable support for rotatable extend/retract screw in telescopic crane boomHARNISCHFEGER CORP·Filed 1980·Granted Nov 3, 1981·48 cites·8 claims
- 1491US4266679AConvertible boom machine having modular bottom portionHARNISCHFEGER CORP·Filed 1979·Granted May 12, 1981·45 cites·10 claims
- 1591US4071205ASpooling drum including stepped flangesHARNISCHFEGER CORP·Filed 1976·Granted Jan 31, 1978·70 cites·3 claims
- 1690US4540097ACrane with outboard counterweight carrierHARNISCHFEGER CORP·Filed 1984·Granted Sep 10, 1985·53 cites·3 claims
- 1789US5452529ARetaining deviceHARNISCHFEGER CORP·Filed 1993·Granted Sep 26, 1995·125 cites·13 claims
- 1889US4217987AActuator for telescopic boomHARNISCHFEGER CORP·Filed 1978·Granted Aug 19, 1980·37 cites·18 claims
- 1988US4953053AMethod and apparatus for detecting mechanical overload of a hoistHARNISCHFEGER CORP·Filed 1989·Granted Aug 28, 1990·69 cites·12 claims
- 2087US5499463APower shovel with variable pitch bracesHARNISCHFEGER CORP·Filed 1994·Granted Mar 19, 1996·59 cites·28 claims
- 2187US4854547AVehicle-mounted retrieval winch and control means thereforHARNISCHFEGER CORP·Filed 1987·Granted Aug 8, 1989·54 cites·9 claims
- 2287US3955684ARotary crane structure with a selective drive on power unitHARNISCHFEGER CORP·Filed 1975·Granted May 11, 1976·48 cites·13 claims
- 2387US3945666APowered outrigger beams having stabilizing spacer pad meansHARNISCHFEGER CORP·Filed 1975·Granted Mar 23, 1976·37 cites·4 claims
- 2486US5469647APower shovelHARNISCHFEGER CORP·Filed 1993·Granted Nov 28, 1995·62 cites·33 claims
- 2586US5074528ARedundant crane reeving apparatusHARNISCHFEGER CORP·Filed 1989·Granted Dec 24, 1991·42 cites·2 claims
- 2686US4352622AWarehouse crane with pin-engageable tote pansHARNISCHFEGER CORP·Filed 1980·Granted Oct 5, 1982·41 cites·6 claims
- 2786US4337868ATelescopic crane boom having rotatable extend/retract screwsHARNISCHFEGER CORP·Filed 1980·Granted Jul 6, 1982·37 cites·9 claims
- 2886US4192456AHeating system for machine operator's cabHARNISCHFEGER CORP·Filed 1978·Granted Mar 11, 1980·50 cites·6 claims
- 2984US5662311ALifting apparatus including overload sensing deviceHARNISCHFEGER CORP·Filed 1996·Granted Sep 2, 1997·59 cites·23 claims
- 3084US5141085AHoist load brakeHARNISCHFEGER CORP·Filed 1990·Granted Aug 25, 1992·54 cites·20 claims
- 3184US4160558ACarrier frame for mobile craneHARNISCHFEGER CORP·Filed 1977·Granted Jul 10, 1979·33 cites·13 claims
- 3283US4069921AOverhead crane including a single failure proof hoistHARNISCHFEGER CORP·Filed 1976·Granted Jan 24, 1978·49 cites·10 claims
- 3382US4139240ACrawler shoe and method for making sameHARNISCHFEGER CORP·Filed 1977·Granted Feb 13, 1979·34 cites·10 claims
- 3481US4125974AControl system for telescopic boomHARNISCHFEGER CORP·Filed 1977·Granted Nov 21, 1978·32 cites·9 claims
- 3580US5815960ARetarding mechanism for the dipper door of a mining shovelHARNISCHFEGER CORP·Filed 1997·Granted Oct 6, 1998·50 cites·13 claims
- 3680US4243120ARetractable boarding ladderHARNISCHFEGER CORP·Filed 1979·Granted Jan 6, 1981·41 cites·8 claims
- 3780US4112649ABoom section for telescopic crane boomHARNISCHFEGER CORP·Filed 1977·Granted Sep 12, 1978·29 cites·10 claims
- 3879US4653655ACrane boom having variable angle offset capabilityHARNISCHFEGER CORP·Filed 1985·Granted Mar 31, 1987·32 cites·18 claims
- 3979US4397396ATruck crane having an elongated main frameHARNISCHFEGER CORP·Filed 1980·Granted Aug 9, 1983·30 cites·21 claims
- 4079US4394912AMobile crane having telescoping outriggers and power operated screw means for sameHARNISCHFEGER CORP·Filed 1980·Granted Jul 26, 1983·32 cites·9 claims
- 4178US5027049AMethod for increasing the speed of an alternating current motorHARNISCHFEGER CORP·Filed 1989·Granted Jun 25, 1991·40 cites·11 claims
- 4278US4331418ADouble masted warehouse craneHARNISCHFEGER CORP·Filed 1980·Granted May 25, 1982·47 cites·3 claims
- 4377US4688690AMethod and apparatus for extending fly section of crane boomHARNISCHFEGER CORP·Filed 1986·Granted Aug 25, 1987·31 cites·15 claims
- 4477US3968884AStorage means for jib for telescopic boom of mobile craneHARNISCHFEGER CORP·Filed 1974·Granted Jul 13, 1976·30 cites·8 claims
- 4576US5513723ADouble-masted crane with improved brake arrangementHARNISCHFEGER CORP·Filed 1994·Granted May 7, 1996·28 cites·19 claims
- 4676US5245882AApparatus for drive component disconnectionHARNISCHFEGER CORP·Filed 1992·Granted Sep 21, 1993·30 cites·8 claims
- 4775US5625262ASystem for equalizing the load of a plurality of motorsHARNISCHFEGER CORP·Filed 1996·Granted Apr 29, 1997·49 cites·11 claims
- 4875US5577858APin-retaining structure and method for retaining a pinHARNISCHFEGER CORP·Filed 1995·Granted Nov 26, 1996·30 cites·16 claims
- 4975US5167401AHoist drive and method for driving a double hoist carrying apparatusHARNISCHFEGER CORP·Filed 1990·Granted Dec 1, 1992·32 cites·26 claims
- 5075US4078191AControl system for regulating the torque and speed of an electric motorHARNISCHFEGER CORP·Filed 1976·Granted Mar 7, 1978·22 cites·24 claims
Showing the top 50 of 184 patent records by PatentIndex Score.
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